Environmental signal processing (ESP): an application of three-dimensional matched field processing in the ocean

Summary form only given. Simulations of matched field processing (MFP) in a complex three-dimensional ocean environment indicate that the environment itself can be exploited for the purpose of array processing. Work discussed in a preceding poster paper has been extended to the range-dependent 3-D environment case. Self-consistent MFP simulations in a noisy 3-D environment have been produced using the same numerical model for constructing the signal and correlated noise field. The approach has been applied to an ocean environment that has a portion of the Gulf Stream running through an area of bathymetric variability together with a storm that produces an anisotropic (horizontally and vertically correlated) noise field. Linear and nonlinear MFP processing is considered for vertical and horizontal arrays. The complexity of the environment has been shown to enhance MFP rather than degrade it